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Single Family ResidenceResidential
$317,579$137 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $235,009 on May 3, 2022

391 UNION ST

BANGOR, ME 04401
4
Beds
2.5
Baths
2,319 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1880
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$318K
$289K low$346K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$235,009 · May 3, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,613 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$260,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$18,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$241,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$248,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$494,855

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyPENOBSCOT
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1975
Lot (acres)The size of the land the home sits on, from county records.0.16
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Hot Water
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
James F. Doughty SchoolB-
Middle · Grades 6–8 · 0.5 mi
E
Vine Street SchoolA-
Elementary · Grades PK–3 · 0.6 mi
H
Bangor High SchoolB-
High · Grades 9–12 · 1.9 mi

District: Bangor

Neighborhood · ZIP 04401These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.101
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.81
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.62

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.46,010
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.443 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$64,092
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$84,961
Average tempThe average temperature here across a full year.44°F
Annual precipHow much rain and melted snow falls here in a typical year.41 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.50%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

391 Union St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Costs less per square foot than 93% of homes in Bangor 04401
  • Bigger than 85% of homes in Penobscot County
  • Has a smaller lot than 90% of homes in Penobscot County
  • Older than 95% of homes in Penobscot County

What homes are worth in Bangor 04401

Each bar is how many homes fall in that price range. The marker is this home.

This home
$148K$811K

This home is worth more than 42% of homes in Bangor 04401.

How it measures up in Bangor 04401

The dot is this home. The mark in the middle is the typical home in Bangor 04401.

Estimated value$317,579
CheaperTypical $344,024Pricier

Pricier than 42% of homes nearby

Price per ft²$137
CheaperTypical $234Pricier

Pricier than 7% of homes nearby

Living area2,319 ft²
SmallerTypical 1,516 ft²Bigger

Bigger than 80% of homes nearby

Lot size0.16 ac
SmallerTypical 0.36 acBigger

Bigger than 23% of homes nearby

Year built1880
OlderTypical 1958Newer

Newer than 7% of homes nearby

How 391 Union St ranks against every home in each area.
MeasureThis homeBangor 04401Penobscot County
Estimated valuepricier than$317,57942% of homes60% of homes
Price per ft²pricier than$1377% of homes9% of homes
Living areabigger than2,319 ft²80% of homes85% of homes
Lot sizebigger than0.16 ac23% of homes10% of homes
Year builtnewer than18807% of homes5% of homes

About 391 Union St

How much is 391 Union St, Bangor, ME worth?

The TopHap Estimate for 391 Union St, Bangor, ME is $317,579 as of Oct 21, 2026. The likely range is $288,887 to $346,271. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 391 Union St, Bangor, ME last sell?

391 Union St, Bangor, ME last sold on May 3, 2022 for $235,009, according to the county's recorded deed.

How big is 391 Union St, Bangor, ME?

391 Union St, Bangor, ME has 4 bedrooms, 2.5 bathrooms, 2,319 square feet of living space and a 0.16-acre lot.

When was 391 Union St, Bangor, ME built?

391 Union St, Bangor, ME was built in 1880, making it 146 years old. It is a conventional home. The building has 2 stories.

What schools serve 391 Union St, Bangor, ME?

391 Union St, Bangor, ME is assigned to James F. Doughty School (middle), rated B-; Vine Street School (elementary), rated A-; Bangor High School (high), rated B-. All sit in Bangor. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 391 Union St, Bangor, ME compare to other homes in Bangor 04401?

Among the 14,208 homes in Bangor 04401, it is worth more than 42% of them ($317,579 against a typical $344,024), its price per square foot is higher than 7% of them ($137 against a typical $234), it is bigger than 80% of them (2,319 ft² against a typical 1,516 ft²), its lot is bigger than 23% of them (0.16 ac against a typical 0.36 ac) and it is newer than 7% of them (1880 against a typical 1958). Measured against all of Penobscot County, it is worth more than 60% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 391 Union St, Bangor, ME?

The 2025 property tax bill for 391 Union St, Bangor, ME was $4,613. The county assessed it at $260,600.

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